So have I as well but I have never had the need to use additives in anything EVER. Simply too easy to keep cars or bikes running perfectly without any of that. The fuel and oil have plenty enough additives in them already. I do my own alignments and ATX work as well on the cars, I have never paid for a car or motorcycle repair in my entire life and the majority of that time keeping at least 4 vehicles running 100% of the time. I as well often fix things much cheaper than the conventional wisdom says has to be paid, I don't accept that at all in most cases. Just buying the new part to replace old one is often not what I do, often fixing the broken one instead. Just fixed a $200 alternator for maybe $5 in soldering work and I do stuff like that all the time. It now works fine. Before that it was a $50 EGR pressure sensor, fixed for maybe $5 there as well. Works fine now. The only thing I don't do myself is tire/wheel changes (I can, just don't) and I don't let them have the car even doing that as they tend to even botch that up. I walked away from a free family high-perf garage business mainly because I did not like how most people were always trying to rip you off after you worked hard on their cars. We were directly across the street from the area GM dealership and took LOTS of their customers away when they could not fix cars right. We also built their drag race engines when their mechs could not keep them from blowing up. I do everything to my house as well, I simply do not pay others to do literally ANYTHING as most that have done those things for years simply do not do it as well as I can apparently the first time with no experience. It is what it is and a sad commentary on the way things are in the world today.
Look up the MSDS on seafoam to see what's in it. No magic, simple petroleum distillate there.
To 80cafe.............there is no mechanism there to 'adjust' that at all, you MUST change the shims there. Unless you do like I do and grind tappet bottoms or valve tips to suit needs there. Again, I often don't follow the 'rules' everybody says you have to do there either. I've ground valve ends on a simple bench grinder and over 100K miles later they are stilling running fine. You just have to have some sense about how you go about it.
